Perhaps you should try some spelling variations:
communication instrumentation » communication documentation, communication interpretation, combustion instrumentation
ionization instrumentation » operation instrumentation, radiation instrumentation, collection instrumentation
https division » fats division
division e » division de, division _, division a
e linear » 1 linear, 10 linear, 13 linear

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((communication instrumentation) or (ionization instrumentation)) https division e linear~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((communication instrumentation) OR (ionization instrumentation)) https division e linear.
• Adding a wildcard symbol may retrieve word variants: ((communication instrumentation) or (ionization instrumentation)) https division e linear*.